Low Impact Development Manual for Michigan - OSEH - University ...

Case Study: Minimizing soil compaction
near an oak tree
City of Troy, MI
Minimizing soil compaction is not only important for drainage of a site, but
also for minimizing impacts to established vegetation. In order to protect a
culturally significant pin oak tree, the City of Troy utilized orange construction
fencing at the drip line of the tree to protect the roots from any damage
that could potentially be caused by machinery. The construction in the area
included the assembly of a permanent picnic shelter that included a concrete
foundation and steel I-beam construction. Prior to any construction commencing,
the City placed the stakes and temporary fencing around the 30-inch oak
tree, and notified the contractor that the area was to be protected.
Heavy equipment used within the drip line of a tree can cause soil compaction,
resulting in the death of tree roots. Damage done to a tree’s root system
may take 3-4 years after construction to be present in a tree’s canopy.
Currently, the shelter has been completed, and the damage was successfully
minimized to the pin oak tree.
Fencing around oak tree to minimize soil compaction
Source: City of Troy
Case Study Site Considerations
Project Type Minimize soil compaction
Estimated Total
Project Cost
Maintenance
Responsibility
Minimal – Utilized DPW stakes
City of Troy
Project Contact Jennifer Lawson, 248-524-3881
LID Manual for Michigan – Chapter 6 Page 70